It's not always easy being -- asVogue puts it -- "the hottest supermodel on Earth." Gracing the cover of the preeminent fashion magazine for the first time, Kate Upton, 20, looked gorgeous showing off her famous bod clad in a floral-printed bathing suit, her blonde hair teased up into tousled waves.

In the interview, the Sports Illustrated swimsuit model spoke candidly about the struggles of having curves while living in the size-0 supermodel world.

Referring to the online commenters who've called Upton "fat," she told Vogue, "It was hard at first. You sit there and you’re like ‘Is something wrong with me?'"

She continued, “The things that they’re rejecting are things that I can’t change. I can’t change my bra size. They’re natural! I can work out and I can stay healthy and motivated, but I can’t change some things."

Kate Upton poses for Vogue Magazine.VOGUE/Mario Testino

Upton, who previously was linked to Diddy, but both denied any romance, says that she's learned to just ignore the negative comments surrounding her famed frame.

"I really just live my life," she shared. "I love my body. It’s what God gave me! I feel confident with myself, and if that inspires other women to feel confident with their bodies, great. It’s kind of funny to think, 'Oh, wow, the news is talking about whether I’m fat or not.'”

The model explains that by maintaining her down-to-earth personality -- tweeting daily and making funny Keek videos for fans -- she hopes to not to be defined as just a supermodel.

“I didn’t buy the magazines that had models on the covers, because I didn’t know them," she said. "So I think this kind of gives me, as a model, a personality that people can connect with."